Date Span
Jan-Feb 1989
5
Jul 1988
4
[1987]
4
May-Jun 1983
3
Nov-Dec 1988
3
[Feb 1989]
3
[Jul 1988]
3
11 Jun 1987
2
1974
2
Apr-May 1989
2
Apr-May 1990
2
Mar-May 1989
2
Oct-Dec 1988
2
[Dec 1988]
2
[Jun 1983]
2
n.d. [1980s]
2
22 Jun 1982
1
27 Jun 1981
1
9 May 1983
1
1 Jun 1987
1
10 Mar 1983
1
10 Mar 1987
1
11 Jun 1984
1
12 Jan 1987
1
12 Nov-15 Dec 1988
1
14 Dec 1984
1
14 Jun 1984
1
14 Oct 1981
1
15 Jan 1987
1
16 Jan 1987
1
17 Dec 1986
1
18 Jan 1989-23 Feb 1989
1
18 May 1987-10 Jun 1987
1
19 Aug 1982
1
1964
1
1964-Dec 1973
1
1970-1974
1
1980
1
1981-1984
1
1984
1
1984-1990
1
1985
1
1986
1
1987
1
2 May 1986
1
2 May 1987
1
20 Apr 1983
1
20 Feb 1987
1
20 Jan 1987
1
21 Oct 1986
1
more ...